25280000005 has 16 divisors (see below), whose sum is σ = 34089955200. Its totient is φ = 17856641088.

The previous prime is 25280000003. The next prime is 25280000017. The reversal of 25280000005 is 50000008252.

It is not a de Polignac number, because 25280000005 - 2¹ = 25280000003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25280000003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8453355 + ... + 8456344.

It is an arithmetic number, because the mean of its divisors is an integer number (2130622200).

Almost surely, 2^25280000005 is an apocalyptic number.

It is an amenable number.

25280000005 is a deficient number, since it is larger than the sum of its proper divisors (8809955195).

25280000005 is a wasteful number, since it uses less digits than its factorization.

25280000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16909740.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 25280000005 its reverse (50000008252), we get a palindrome (75280008257).

The spelling of 25280000005 in words is "twenty-five billion, two hundred eighty million, five", and thus it is an aban number.